Simple and Efficient One‐Pot, Three‐Component, Solvent‐Free Synthesis of β‐Enaminones via Sonogashira Coupling–Michael Addition Sequences
作者:Sanjay S. Palimkar、Vijaykumar S. More、Kumar V. Srinivasan
DOI:10.1080/00397910801914343
日期:2008.4
A simple, efficient, and environmentally friendly one-pot, three-component synthesis of beta-enaminones via Sonogashira coupling-Michael addition sequences under solvent-free conditions has been reported. Also the synthesis of beta-enaminones has been achieved in high yields by the direct reaction of amines with ynones under solvent-free conditions.
Copper-Catalyzed CC Bond Formation through CH Functionalization: Synthesis of Multisubstituted Indoles from<i>N</i>-Aryl Enaminones
A variety of functionalities, including the whole range of halogen substituents, are tolerated in the title reaction, an intramolecular approach for the construction of a multisubstituted indole skeleton from readily available enaminones (see scheme; phen=1,10‐phenanthroline). The indole products are also prepared directly in high yield from α,β‐ynones and primary amines.
A Metal-Free Multicomponent Cascade Reaction for the Regiospecific Synthesis of 1,5-Disubstituted 1,2,3-Triazoles
作者:Guolin Cheng、Xiaobao Zeng、Jinhai Shen、Xuesong Wang、Xiuling Cui
DOI:10.1002/anie.201307499
日期:2013.12.9
About specifics: A method for the regiospecific synthesis of the title compounds through an unprecedented Michael addition/deacylative diazo transfer/cyclization sequence has been established. The simple and practical method can be used for the modification of primary amines including chiral α‐amines. The process involves the formation three covalent bonds and the cleavage of two covalent bonds (see